well It is not hard to get water to come out of a sprinkler head...but if u want good coverage and a decent system that doesn't waste a ton of water you better find a pro...I am from mass and know some good guys on the boarder of NH..they could help u out with an estimate... you need to find out what the GPM is at your water source (Gallons Per Minute) this will tell you if u can even have a system, u may need to purchase a pump..I'm sure u got a well in NH...the physical work is not bad, setting heads etc... it's the design that you will definately need help on...example...if yer GPM is 20Gal per minute? and u had 5 rotars(heads) in a zone with 5Gal nozzles yer already F'ing up the performance because yer trying to use water u don't have (5x5=25) this exceeds yer available GPM...ya really need a pro...get a smaller company and tell them yer gonna supply the labor, so you can learn and cut down on yer cost...tell them u want rainbird 5000 rotars and toro pop-ups Flotrol valves and a RAINbird digital clock..most user friendly and reliable..if u install with the guy u hire u will never need a service call...where in NH are ya...